US Bridges

M-10 WB over M-8 Ramp to M-10 SB

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000013499

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
171 ft
3 main spans
Daily traffic
78,042
2007 count
Owner
State
State Highway Agency

About this bridge

M-10 WB over M-8 Ramp to M-10 SB is a steel stringer/multi-beam or girder carrying M-10 WB over M-8 Ramp to M-10 SB in Wayne County, Michigan. It was built in 1956 and reconstructed in 1987, so it is 69 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 78,042 vehicles a day, roughly 2% of them trucks, projected to reach 67,469 by 2018. The structure is 171 ft (52.2 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-10 WB
CrossesM-8 Ramp to M-10 SB
LocationIn Detroit
RouteState Highway 10
CountyWayne County
StateMichigan
Coordinates42.39773, -83.10915
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.3 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length171 ft (52.2 m)
Longest span69 ft (21 m)
Deck width73 ft (22.2 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,042 (2007)
Projected traffic67,469 by 2018
Trucks2%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was M-10 WB over M-8 Ramp to M-10 SB built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is M-10 WB over M-8 Ramp to M-10 SB in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does M-10 WB over M-8 Ramp to M-10 SB carry?

About 78,042 vehicles per day (2007 count), of which roughly 2% are trucks.

How long is M-10 WB over M-8 Ramp to M-10 SB?

The structure is 171 ft (52.2 m) long with a longest span of 69 ft (21 m) and a deck 73 ft wide.

Who owns M-10 WB over M-8 Ramp to M-10 SB?

It is owned by the State Highway Agency.